I’m with Justin on the particles but I’m going for the most simple popular explanation.NEIL WIENER, PROFESSOR: I’m probably between the two of them. This is how you deal with dark matter right there.

What if we don’t. That’s what they, that’s what it is.HOCKENBERRY: So how many how many primordial black holes does it take to make a universe.

I think what Lisa said about Einstein was great. But the thing to remember is that you know we’re working on these things because we’re optimistic about the ability to discover them but with the Higgs boson that was a particle where you know exactly it’s properties up to one unknown parameter, its mass and it took you 50 years to find it. 80 percent of the atmosphere. How many were at the Oliver Sacks celebration last night. Yeah the other way. So there’s also dark normal matter in addition to the unseen missing mass that’s something totally else.

We’ll just call it dark matter and leave it at that. Eventually you get galaxies which are today merging together to make clusters and superclusters and long filaments of structure. Stacey a lot.McGAUGH: I guess you know there is a history to this. It’s sort of the Dark matter of the atmosphere. And I and this is something that all the existing theories for the well I won’t say Mohn but for like Tevis is a is a is a particular variant which is a well-defined theory. And so we see here the orbits of the planets around the stars. How about you. Detailed progress . It’s underneath apennine mountains. I mean that seems like a very optimistic assumption to think that the dark matter should be exactly the kind of particle we see. Then these giant things that are 50000 light years in extent that are seen in gamma ray. The Nordic Institute for Theoretical Physics and has a boa. Right. I think that I am I’m I’m a big fan of the paper. But what it does is it affects any light behind the dark matter. But I’m just saying that it shouldn’t surprise us that there are other things. And so standing on the surface of the earth we of course feel 1G about two meters per second per second of acceleration. There we go. That’s it that’s the theory. So we see these things in that when we look in the sky in the sky you can see these things by looking at the stars that are inside them. I think at the time there were some imperial discrepancies with Mercury’s orbit and so forth and when he came up with general relativity you look at this he say oh yes this has to be true because it’s so beautiful. And they argue is it 24 or is it 26. Can we. But no none of us are actually. You talking about that downstairs andWIENER: Sommerfeld enhancement. Let’s talk for just one second about a couple of other things that were in that video. Forget what you think you know about dark matter. It doesn’t it won’t give you a picture like that. The ones further out going more slowly. So if WIMP’S are the correct thing they are their own antiparticle and when they collide in space they have a cascade of things that can result in the production of a standard model particles. That’s correct.

Well it’s the kind of headline that’s going toRANDALL: I’m just going to say one quick thing. One of the things that would be really convincing to me is if you could map the gamma rays sky well enough that you not only saw this but it looked like our simulations predicted should look like and you see that dark matter halo and the emission of gamma rays not just for our own Milky Way but also the sub Halos that are predicted to exist containing dwarf galaxies and so forth.HOCKENBERRY: So what’s the fermi bubble that is predicted for our galaxy.FREESE: So the Fermi satellite is mapping the gamma ray sky. So one thing that Stacy mentioned was OK this Milgrom formula works well and galaxies and what happens with Bulloch clusters and what happens in galaxy clusters. And Sommerfeld enhancement was something that became a lot discussed quite a bit of late when we thought we knew how WIMP’s and WIMP like particles have their collisions with each other. Why.

So the real motivation for me for thinking about this was that mathematically when you write down the theory that describes those sound waves it looks eerily similar strikingly similar mathematically to theories of superfluities that we know.